Effect of annealing on the structural and optical properties of AgGaS2 thin films prepared by pulsed laser deposition

Hsu Cheng Hsu, Hsin Hong Chen, Shou Yi Kuo, Chen Shiung Chang, Wen Feng Hsieh

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8 Citations (Scopus)

Abstract

The influence of annealing on the AgGaS2 films grown by pulsed laser deposition has been investigated. The X-ray diffraction results show the AgGaS2 films were found with preferential orientation (1 1 2) normal to the surface and silver droplets were diminished after the post-annealing. Photoluminescence (PL) measurements reveled the exciton energy is slightly red shifted that is possibly due to the thermal strain effect. The binding energy of the shallow donors is ∼28 meV determined from temperature dependent PL spectra. In addition, the A-exciton and the B/C-exciton could be observed in the transmittance spectra at room temperature.

Original languageEnglish
Pages (from-to)237-241
Number of pages5
JournalThin Solid Films
Volume419
Issue number1-2
DOIs
Publication statusPublished - 2002 Nov 1

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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